See your vessel's precise, on-chart position in relation to navaids, coastal features and restricted areas with premium features found in this detailed marine mapping data. Includes all of the features of our BlueChart® g2 product, plus 3-D perspective above and below the waterline, Auto Guidance, high-resolution imagery, and aerial photos of ports, harbors, marinas and landmarks.Coverage:Detailed coverage from Gloucester, MA to Wildwood, NJ., including Cape Cod, Martha's Vineyard, and Nantucket Island, as well as Long Island Sound, New York Harbor, the Hudson R. to its junction with the Mowhawk R., and Raritan Bay. Also provides bathymetric coverage of offshore features from Georges Basin to Baltimore Canyon, including Georges Bank, the Bear Seamount, and the Hudson and Wilmington Canyons.